Matsumura M, Nomura H, Koni I, Mabuchi H
Angiotensin converting enzyme inhibitors are associated with
the need for increased recombinant human erythropoietin
maintenance doses in hemodialysis patients
Nephron
(Oct) 77:164-168 1997

There are two abstracts at ASN '97 on this topic as well, one agreeing with
the present paper in CAPD patients, and one finding no effect.
The abstract of this paper is available from NEPHRON online
at this site.